ASP.NET: get external IP address

Question

I developed site. I need to get IP of site visitors. I try to use Request, but it have only internal IP:

Response.Write(Request.ServerVariables[\"REMOTE_ADD         


        

Answer 1

You can use like this

String lstrIpAddress;
if (Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null || Request.ServerVariables["HTTP_CLIENT_IP"] != null)
    lstrIpAddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
else
    lstrIpAddress = Request.ServerVariables["REMOTE_ADDR"];